Child Safety Seat Ease of Use Ratings


Are All Seats Safe?
All car seats rated by NHTSA meet Federal Safety Standards & strict crash performance standards. While all rated seats are safe, they do differ in their ease of use in four basic catagories:


Evaluation of Instructions

Vehicle Installation Features

Evaluation of Labels

Securing the Child


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Diono 3RXT (B)



Manufacturer  /  Model NameDiono 3RXT
Model Number  /  Manufacture Date50011-US-01  /  Jun 1, 2018
Harness TypeHighback
Weight  /  Height50lb - 120lb / up to 57"
Evaluation of Labels 1 stars
There is not a full picture of a child properly restrained in the child seat directly next to sizing information on the labeling. Supplemental sizing information is missing from the labels. There are diagrams of the various methods of installation for this mode on the labels, but they are labeled with icons and it is not clear that these are installation modes to select from. The seat belt routing path is not completely labeled. The label warning against using a lap-only belt is not illustrated and does not explicitly state that a lap-only belt may not be used.
Evaluation of Instructions 2 stars
The instruction manual storage location cannot be accessed while the child is seated in the seat. Supplemental sizing information is given in short, simple text. No complete illustration of a child in the CRS is shown next to height/weight information. The car seat is not depicted in a vehicle seat in the section summarizing acceptable methods of installation. It is also not depicted in a vehicle seat in the instructions for properly routing the seat belt. The seat belt routing instructions are not illustrated step-by-step. The warning that the rear seat is the safest place in a vehicle for children is located amongst other warnings.
Securing the Child 1 stars
When converting this seat to booster mode, the harness must be removed and could be misplaced. There are no illustrations on the seat depicting how to convert the seat to this mode of use. When converting to booster mode, there are multiple steps that the user will need to refer to in the user manual. Loose parts may be generated when disassembling for cleaning.
Installation Features 5 stars
Overall Ease of Use Rating 1 stars

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